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  • Title: Agrocybin, an antifungal peptide from the edible mushroom Agrocybe cylindracea.
    Author: Ngai PH, Zhao Z, Ng TB.
    Journal: Peptides; 2005 Feb; 26(2):191-6. PubMed ID: 15629530.
    Abstract:
    An antifungal peptide with a molecular mass of 9 kDa was isolated from fresh fruiting bodies of the mushroom Agrocybe cylindracea. The isolation procedure comprised ion exchange chromatography on DEAE-cellulose, affinity chromatography on Affi-gel blue gel, ion exchange chromatography by fast protein liquid chromatography (FPLC) on Mono S, and FPLC-gel filtration on a Superdex 75 column. The antifungal peptide, designated as agrocybin, was unadsorbed on DEAE-cellulose, and adsorbed on Affi-gel blue gel and Mono S. Agrocybin exerted antifungal activity against several fungal species but lacked inhibitory activity against bacteria when tested up to 300 microM. The activity of HIV-1 reverse transcriptase was attenuated in the presence of agrocybin. It exhibited weaker mitogenic activity than Con A on isolated murine splenocytes, but was devoid of antiproliferative activity on Hep G2 (hepatoma) cells when tested at 110 microM.
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